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misskey/src/server/api/endpoints/aggregation/users/followers.ts

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/**
* Module dependencies
*/
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import $ from 'cafy';
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import User from '../../../../../models/user';
import Following from '../../../../../models/following';
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/**
* Aggregate followers of a user
*
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* @param {any} params
* @return {Promise<any>}
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*/
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module.exports = (params) => new Promise(async (res, rej) => {
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// Get 'userId' parameter
const [userId, userIdErr] = $(params.userId).id().$;
if (userIdErr) return rej('invalid userId param');
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// Lookup user
const user = await User.findOne({
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_id: userId
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}, {
fields: {
_id: true
}
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});
if (user === null) {
return rej('user not found');
}
const startTime = new Date(new Date().setMonth(new Date().getMonth() - 1));
const following = await Following
.find({
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followeeId: user._id,
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$or: [
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{ deletedAt: { $exists: false } },
{ deletedAt: { $gt: startTime } }
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]
}, {
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sort: { createdAt: -1 },
fields: {
_id: false,
followerId: false,
followeeId: false
}
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});
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const graph = [];
for (let i = 0; i < 30; i++) {
let day = new Date(new Date().setDate(new Date().getDate() - i));
day = new Date(day.setMilliseconds(999));
day = new Date(day.setSeconds(59));
day = new Date(day.setMinutes(59));
day = new Date(day.setHours(23));
// day = day.getTime();
const count = following.filter(f =>
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f.createdAt < day && (f.deletedAt == null || f.deletedAt > day)
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).length;
graph.push({
date: {
year: day.getFullYear(),
month: day.getMonth() + 1, // In JavaScript, month is zero-based.
day: day.getDate()
},
count: count
});
}
res(graph);
});